Rapid Biodiversity Assessment and Monitoring Method for Highly Diverse Benthic Communities: A Case Study of Mediterranean Coralligenous Outcrops

In this contribution a practical and rational decision-making approach is presented to be applied for common bridges typically managed by public authorities. The authors have developed a model with the intention to be applicable for practical cases for common bridges in the daily work of bride operators responsible for a large number of assets, yet still maintain the principles of more generic frameworks based on probabilistic decision-theory.Three main attributes of the verification of sufficiency of structural performance are considered, namely: 1) the level of sophistication of modelling performance, 2) the degree of verification and acceptance criteria in terms of dealing with uncertainties and consequences, 3) the extent of information is obtained and incorporated in the verification.The simplicity of the approach is demonstrated through an illustrative case study inspired by practical condition assessment decision problems. It is argued that in practical cases it may be desirable to utilize less advanced methods owing to constraints in resources or lack of reliable data (e.g. based on structural health monitoring or other on-site measurement techniques).

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Biodiversity soup: metabarcoding of arthropods for rapid biodiversity assessment and biomonitoring

Methods in Ecology and Evolution ◽

10.1111/j.2041-210x.2012.00198.x ◽

2012 ◽

Vol 3 (4) ◽

pp. 613-623 ◽

Cited By ~ 353

Author(s):

Douglas W. Yu ◽

Yinqiu Ji ◽

Brent C. Emerson ◽

Xiaoyang Wang ◽

Chengxi Ye ◽

...

Keyword(s):

Biodiversity Assessment ◽

Rapid Biodiversity Assessment

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Enhanced change detection index for disaster response, recovery assessment and monitoring of buildings and critical facilities—A case study for Muzzaffarabad, Pakistan

International Journal of Applied Earth Observation and Geoinformation ◽

10.1016/j.jag.2017.07.010 ◽

2017 ◽

Vol 63 ◽

pp. 167-177 ◽

Cited By ~ 4

Author(s):

Dilkushi A. de Alwis Pitts ◽

Emily So

Keyword(s):

Change Detection ◽

Disaster Response ◽

Response Recovery ◽

Critical Facilities ◽

Assessment And Monitoring ◽

Recovery Assessment

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Self-Supply Service Level Assessment as Drinking Water Source in Bekasi City (Case Study: Jatiluhur, Sumur Batu, and Jatirangga Villages)

E3S Web of Conferences ◽

10.1051/e3sconf/202127704004 ◽

2021 ◽

Vol 277 ◽

pp. 04004

Author(s):

Aprilia Harera ◽

Gita Lestari Putri ◽

Tim Foster

Keyword(s):

Drinking Water ◽

Water Source ◽

Service Level ◽

Water Systems ◽

Water Sources ◽

Drinking Water Source ◽

Monitoring Method ◽

Dug Wells ◽

Monthly Survey

Drinking water sources derived from groundwater using selfsupply approaches are widely used in Bekasi City because only 26.8% of households are connected to the piped distribution. These self-supplied water systems can be assessed to determine how people choose a better drinking source. Therefore, this study aims to assess the service level attributes of self-supply, including accessibility, availability, and quality. A longitudinal monitoring method by means of a monthly survey to respondents was used to mens perceptions of taste, smell, color, availability, and safety. The results on both household and citywide scale showed boreholes were perceived to deliver a high service level. On the household scale, 93% of boreholes user got ‘high’ score for water service assessment, while dug wells were only 76%. During the 8 months survey, it was shown that 45% of respondents change their main source of drinking water from self-supply to other source for several reasons. Therefore, this study is expected to provide an overview related to the resilience of selfsupply drinking water for a certain period.

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Measuring floating ice thickness with optical fibers and DAS, a test case study on a frozen moutain lake.

10.5194/egusphere-egu21-7404 ◽

2021 ◽

Author(s):

Olivier Coutant ◽

Ludovic Moreau ◽

Pierre Boué ◽

Eric Larose ◽

Arnaud Cimolino

Keyword(s):

Fiber Optics ◽

Optical Fibers ◽

Ambient Noise ◽

Seismic Waves ◽

Safety Issue ◽

Seismic Survey ◽

Ice Thickness ◽

Test Case ◽

Monitoring Method

Accurate monitoring of floating ice thickness is an important safety issue for northern countries where lakes, fjords, and coasts are covered with ice in winter, and used by people to travel. For example in Finland, 15-20 fatal accidents occur every year due to ice-related drowning. We have explored the potential of fiber optics to measure the propagation of seismic waves guided in the ice layer, in order to infer its thickness via the inversion of the dispersion curves. An optical fiber was deployed on a frozen lake at Lacs Roberts (2400m) above Grenoble and we measured with a DAS the signal generated by active sources (hammer) and ambient noise. We demonstrate that we can retrieve the ice thickness. This monitoring method could be of interest since the deployment of a fiber on ice is quite simple (e.g. using a drone) compared to other techniques for ice thickness estimation such as seismic survey or manual drilling.

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Freight Vehicle Travel Time Analysis: A Case Study of Birgunj Nagdhunga Corridor

Journal of Advanced Research in Civil and Environmental Engineering ◽

10.24321/2393.8307.202103 ◽

2021 ◽

Vol 08 (02) ◽

pp. 1-13

Author(s):

Abhishek Jha ◽

Keyword(s):

Travel Time ◽

Traffic Congestion ◽

License Plate ◽

Monitoring Method ◽

Factors Affecting ◽

Average Travel Time ◽

Major Factors ◽

Vehicle Travel Time ◽

Freight Vehicles

This study covers the freight vehicle, which clears the custom clearance process for Kathmandu and transports the same goods to Kathmandu from Birgunj. In this study average travel time for freight vehicles from Birgunj to Nagdhunga has been studied, along with the factors affecting the travel time from Birgunj to Nagdhunga. License plate monitoring method of the freight vehicles was done to find the average travel time and a questionnaire survey was done to identify the factors affecting travel time of the freight vehicle. The travel time from Birgunj to Nagdhunga is different for different types of, vehicle and good. The fastest average travel time is of fixed container of 40 feet size with 23.2 hours and longest average time is for fixed container of 20 feet size with 28.95 hours. The average travel time for non-degradable goods is 26.5 hours and for degradable goods is 22.38 hours. Major factors affecting the travel time are traffic congestion along the route, bad road condition along the route and hilly road with sharp bends, turns and grade.

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Modeling Large-Size Boilers As a Set of Heat Exchangers: Tips and Tricks

10.1115/imece2001/htd-24231 ◽

2001 ◽

Author(s):

Cristóbal Cortés ◽

Luis I. Díez ◽

Antonio Campo

Keyword(s):

Heat Exchanger ◽

Heat Exchangers ◽

Heat Recovery ◽

Practical Calculation ◽

Approximate Methods ◽

Monitoring Method ◽

Large Size ◽

Thermoelectric Plant ◽

The One

Abstract Practical calculation of the heat-recovery sections of large-size boilers is still based on approximate methods. On the one hand, CFD-based models cannot directly handle the geometric intricacy of tube bundles, and thus rely on volume-averaged source terms that demand empirical input. On the other hand, the standard, lumped heat exchanger calculation, which can be a far simpler and more robust alternative, fails in several important aspects, mainly related to the effects of thermal radiation and the coupling between several sections. In this paper, we consider the diverse sections of a coal-fired utility boiler as a case study to show how to deal with these shortcomings. Under the objective of developing a simple monitoring method, we extend the traditional heat exchanger model to take into account most of the peculiarities of boiler superheaters, reheaters and economizers. Techniques range from the re-examination of analytical solutions to the auxiliary use of CFD calculations. The models are assembled to simulate the thermal performance of the boiler as a whole unit. Results are validated against actual measurements taken at a thermoelectric plant.

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